AncestorThecodontosaurusSaturnaliaAmmosaurusAnchisaurusRiojasaurusMelanorosaurusCamelotiaLessemsaurusJingshanosaurusMassospondylusYunnanosaurusMussaurusColoradisaurusEuskelosaurusPlateosaurusSellosaurusG_sinensisLufengosaurusBlikanasaurusChinshakiangosaurusKotasaurusVulcanodonBarapasaurusShunosaurusOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Upchurch_etal_2007bb